Self-cleaning Wet Wells for Constant-speed Pumps

A proposed alternative design for self-cleaning wet wells for constant-speed pumps is described. By using the approach sewer for the part of the station's storage requirement, the wet well can be small. The wet well floor can be configured so that the pumps are used for cleaning without the nee...

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Bibliographic Details
Published in:Water environment & technology 1997-04, Vol.9 (4), p.39-43
Main Authors: Jones, Garr M., Sanks, Robert L.
Format: Magazinearticle
Language:English
Subjects:
Cleaning
Design engineering
Ecological risk assessment
Environment
Excavation
FEATURES
Floors
Hydraulics
Inlets
Maintenance
Mathematical models
Pumping
Pumping plants
Pumping stations
Pumps
Q1
Sewers
Storage
Velocity
Wastewater
Water pumps
Well design
Wells
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Summary:A proposed alternative design for self-cleaning wet wells for constant-speed pumps is described. By using the approach sewer for the part of the station's storage requirement, the wet well can be small. The wet well floor can be configured so that the pumps are used for cleaning without the need for deeper excavation. The alternative design appeared to pose some risks, such as the entrapment and unstable conditions, so the Environmental Protection Agency and several pump manufacturers funded a model study to provide more definitive guidance to design engineers. Laboratory studies and field experience have demonstrated the viability and value of the self-cleaning wet well design in more than 50 pumping stations.
ISSN:1044-9493
1938-193X